VulnerabilitiesNov 12, 2026

Critical Apache HTTP/2 Vulnerability (CVE-2026-119618): How Imperva Protects Customers

Critical Apache HTTP/2 vulnerability CVE-2026-119618 allows remote code execution.

A critical vulnerability, CVE-2026-119618, has been disclosed in Apache HTTP Server's HTTP/2 module, rated 9.8/10 on the CVSS scale. This flaw allows remote attackers to execute code on affected servers without authentication. Apache has released version 2.4.71 to fix the issue, and Imperva products offer various protection methods for their customers.

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The lesson from this incident

Full lesson

A critical unauthenticated remote code execution vulnerability (CVE-2026-119618, CVSS 9.8) in Apache HTTP Server's HTTP/2 module exposes internet-facing web servers to complete compromise without requiring any attacker credentials. This class of flaw is especially dangerous because exploitation requires no prior access, meaning any exposed server is at immediate risk from automated scanning and exploitation tools. Apache responded by releasing version 2.4.71, but organizations that delay patching or lack visibility into their Apache deployments remain exposed. The incident underscores that critical infrastructure components like web servers must be tracked in an up-to-date inventory and subject to emergency patching procedures.

What helps against this

How we list vendors

Vulnerability scanning and prioritisation
You know which systems are vulnerable, and which ones to fix first.
For exampleQualys VMDR Tenable Vulnerability Management Rapid7 Exposure Command (InsightVM)all options
Automated patch management
Known holes get closed in days, not months.
For exampleMicrosoft Intune Ivanti Neurons for Patch Management ManageEngine Patch Manager Plus all options
Web application firewall and DDoS protection
Websites and APIs stay up, and common web attacks are filtered before they reach them.
For exampleCloudflare WAF and DDoS protection Akamai App & API Protector Imperva Cloud WAF all options

Indicators of Compromise

Extracted by AI from the linked source. Not reviewed by an editor. How this works

cve — CVE-2026-119618

Entities

Apache HTTP Server (product)mod_http2 (product)Imperva (vendor)